How Fast Would You Have to Drive in Order to See

question 53

Multiple Choice

How fast would you have to drive in order to see a red light as green? Assume λ = 630 nm for red and λ = 530 nm for green.

• A) 5 × 10⁷ m/s
• B) 5 × 10⁶ m/s
• C) 5 × 10⁵ m/s
• D) 5 × 10⁴ m/s

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